Montblanc MB0291O Optical Frame blends a classic panthos silhouette with durable acetate construction. Designed for everyday prescription wear, it offers a refined look and reliable frame stability. Key attributes: Black | Transparent | Acetate | Demo lenses included | Prescription ready | Panthos shape | Full rim | Matte finish | Dimensions & fit: Lens width 50 mm | Composition & care: Acetate | Wipe with a soft cloth. Store in a protective case when not in use.